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User:CouvGeek/sandbox/List of Interstate Highways in Oregon

Route map:
From Wikipedia, the free encyclopedia
Highway markers for I-84 and I-205
System information
Maintained by ODOT
Length729.52 mi (1,174.05 km)
FormedJune 29, 1956[1]
Highway names
InterstatesInterstate nn (I-nn)
System links

History

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The state had an expressway system. Each one had two lanes, bypassing major cities. Baldock Freeway between Salem and Portland part of this system. When the Interstates were built, the expressways were rebuilt to accommodate four lanes, two in each direction. http://www.odotmovingahead.com/2006/09/ p5 access 8/30/16

Primary Interstates

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Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-5 308.37[2] 496.27 I-5 at the California state line I-5 at Portland
I-80N 375.68[3][4] 604.60 I-5/US 30 in Portland I-80N near Ontario 01980-01-011980[5] Replaced by I-84
I-82 11.21[6] 18.04 I-82/US 395 near Umatilla I-84/US 30 near Hermiston
I-84 375.68[3][4] 604.60 I-5/US 30 in Portland I-84 near Ontario 01980-01-011980[5] current
  •       Former

Auxiliary Interstates

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Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-105 3.49[7] 5.62 OR 99/OR 126/OR 126 Bus. in Eugene I-5 and OR 126 in Eugene–Springfield Spur into Downtown Eugene
I-205 26.56[8] 42.74 I-5 in Tualatin I-205 at Portland 01970-05-281970[9] current Bypass of Portland
I-405 4.21[10] 6.78 I-5 in Portland I-5/US 30 in Portland 01969-02-251969[11] current Loop into Downtown Portland; Stadium Freeway

Unbuilt Interstates

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Number Southern or western terminus Northern or eastern terminus Notes
I-305 Salem I-5 in Salem Proposed spur into Downtown Salem. Now exists as a portion of OR 99E Bus. (Salem Parkway).
I-505 Portland I-405 in Portland Proposed spur into the Northwest Industrial neighborhood. A small portion was built, now US 30.

References

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  1. ^ Weingroff, Richard F. (Summer 1996). "Federal-Aid Highway Act of 1956: Creating the Interstate System". Public Roads. 60 (1). Washington, DC: Federal Highway Administration. ISSN 0033-3735. Retrieved December 6, 2014.
  2. ^ "Pacific Highway No. 1" (PDF). Oregon Department of Transportation. October 2013. Retrieved September 27, 2014.
  3. ^ a b "Columbia River Highway No. 2" (PDF). Oregon Department of Transportation. August 2012. Retrieved October 10, 2014.
  4. ^ a b "Old Oregon Trail Highway No. 6" (PDF). Oregon Department of Transportation. February 2012. Retrieved October 10, 2014.
  5. ^ a b "I-80N Becomes I-84 May 1". The Oregonian. Portland, OR. Associated Press. April 1, 1980. p. B4. ISSN 8750-1317. Retrieved November 1, 2014 – via NewsBank.
  6. ^ "McNary Highway No. 70" (PDF). Oregon Department of Transportation. February 2011. Retrieved September 16, 2014.
  7. ^ "Eugene-Springfield Highway No. 227" (PDF). Oregon Department of Transportation. September 2013. Retrieved September 16, 2014.
  8. ^ "East Portland Freeway No. 64" (PDF). Oregon Department of Transportation. August 2013. Retrieved September 27, 2014.
  9. ^ Kramer, George (May 2004). The Interstate Highway System in Oregon: A Historic Overview (PDF) (Report). Oregon Department of Transportation. p. 58. Retrieved October 10, 2014.
  10. ^ "Stadium Freeway No. 61" (PDF). Oregon Department of Transportation. August 2013. Retrieved September 20, 2014.
  11. ^ Kramer, George (May 2004). The Interstate Highway System in Oregon: A Historic Overview (PDF) (Report). Oregon Department of Transportation. p. 68. Retrieved October 10, 2014.
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